Flow measuring device



July 24, 1934. I E. WACHVENDORFF 1,967,847

FLOW MEASURING DEVICE Filed March 3, 1951 .fji in 70 carries the Patented July 24, 1934 FLOW MEASURING DEVICE Ernst Wachendorfl', S

t. Poelten, near Vienna,

Austria, assignor to North American Rayon Corporation, New York, N. Y.,

of Delaware Application March 3, 1931, Serial No. 519,791 In Germany July 16, 1930 7 Claims.

My present invention relates to improvements in measuring devices for use in the manufacture of artificial silk, particularly to improvements in measuring the quantity and rate of flow of the cel- 5 lulosic solution through the spinning mechanism.

One object of my present invention is to provide an improved device to be the quantity and rate of flow of used in measuring the cellulosic solution through the spinning mechanism which may be either flxedly or removably secured thereto.

Another object of my present invention is to provide mechanism for placing a series of measuring flasks beneath the spinneret, the driving means being so arranged as to maintain one of said flasks beneath the spinneret during a predetermined number of revoluti nism employed to force the through the spinneret.

ons of the mechaspinmng solution A further object of my present invention is to provide a measuring mechanism having driving means which are adapted to actuate a plurality of like measuring devices.

These and other objects of my present invention will become more apparent as the description of my novel measuring device proceeds.

The attached drawing serves tails of my new invention.

In the drawing:

Figure 1 discloses a side eleva to disclose the detion of my new arrangement, attached to a spinning machine frame which is partially shown in cross section, and

Figure 2 is a detailed view of the cam arrange-' ment.

Figure 3 is an enlarged detailed horizontal section on the line 3-3 of Figure Figure 4 is an enlarged plan view of the receiving flasks and holding means per se;

On the surface of the spinning table or platform 1 is secured the filter 3 by means of a suitable bracket 2, and which is provided at one end with a spinning tube 4, the upper end of which spinning nozzle or spinneret 5. The

measuring device is removably hung to the edge 7 of the table by means of the h by the pump drive shaft 8 of chine through 00k 6 and is driven the spinning mathe gear train 9, 10, and 11. This driving connection may be moved into or out of a purpose the shaft 14 contacts with cam 17 which is rotated by means 12. These gears drive the 13 secured therea wheel 16 providto be hereafter 18, A holder 20 is e supporting shaft a corporation 19 and is provided with three flask-holding brackets in which the respective flasks 21 are secured. As will be noted, the shaft 19 is so arranged with respect to the spinneret that each one of the flasks may be readily located directly there-beneath. A star wheel 22 is fixedly secured to the lower end of said shaft and is adapted to be intermittently rotated by the pin 15 carried by the cam wheel 16.

The form of the cam 17 is clearly disclosed in Figure 2 and consists of a substantially circular disk having a portion of the face thereof between the dotted lines cut away to permit the shaft 14 to drop and thereby move the pin 15 into engagement with the slots of the star wheel 22. The shaft 14 rotates continuously and since the gear 13 is enclosed in a housing it does not move vertically with the shaft 14 although rotating therewith. If such were not the case, the dropping of the shaft 14, although the pin 15 on the cam wheel 16 would move into engagement with the slots of the star wheel 22, the gear 13 would be taken out of engagement with the gear 11 and thereby fail to continue to rotate the shaft 14 resulting in the failure of the shaft 19 to rotate and change the position of the flasks 21. It is therefore readily-seen that the gear 13 is always in mesh with the gear train 9-11.

The mechanism employed to rotate the shaft 19 comprises not only a Geneva movement, but also includes means to maintain the pin 15 out of engagement with the star wheel 22 or as it is sometimes called, the Geneva gear, until a plurality of revolutions of the pump drive shaft 8 have taken-place. 'If the Geneva movement alone were used to rotate the flasks 21 beneath the spinning nozzle 5, the intermittent movement of the flasks 21 would result in the filling intervals being of too short a duration since pause between the intermittent movements caused by the Geneva movement alone is necessarily limited.

. Accordingly when the cam l'Thas been rotated sufficiently to cause the downward movement of the shaft 14, the pen 15 is brought into engagement with one of the slots of the star wheel 22. Continuous rotation of the shaft 14 through the gear train 9, 10, 11 and 13 is therefore always taking'place, but rotation of the star wheel 22 and the shaft 19 only takes place when the cam wheel 16 is lowered by its shaft 14 riding down into the depression of the cam 17 thereby bringing the said pin 15 into engagement with a slot of the star wheel 22. Obviously when the shaft 14 is again raised the pin 15 will be rotating above the plane of the star wheel 22 and therefore no further movement of theshaft 19 will take place 110 until the pin 15 is again brought into engagement with the star wheel by a successive lowering of the shaft 14.

If the cam 17 were not used to lift the cam wheel 16 out of the engagement plane of the star wheel 22 asingle rotation of the shaft 14 would intermittently rotate the star wheel 22. Whereas with this construction the star wheel 22 is only in engagement once during a plurality of rotations of the shaft 14. As shown in detail in Figure 2, the driving mechanism for the cam 17 is so arranged as to cause said cam to be rotated through the distance indicated by the dotted line during a certain number of revolutions of the spinning pump, for example during 25 revolutions thereof. The face of the cam then changes, as illustrated, to permit a downward movement of the shaft 14 bringing the cam wheel 16 carried thereby into operative position with respect to the star wheel. Continued rotationof the shaft causes the pin 15 to contact with and shift said star wheel thereby rotating the supporting'rod or shaft 19. Thus the measuring flask 21, which has been filled, will be moved from beneath the spinneret and can be removed from the holding bracket to be read or weighed. During the short interval required to shift an empty flask into collecting position by rotation of shaft 19, the

waste spinning solution may be collected in the container 23.

In order to beable to measure a large number of spinning places simultaneously with this arrangement, a U-rail 24 is, attached to it in the length-wise direction of /the spinning table on which a corresponding number of supporting rods or shafts 19 and holders 20 with chain sprockets 25 are placed at the spinning places.

By means of the chain transmission through the gear wheels 25 the placing and removing of the measuring containers at the difierent spinning places may be effected simultaenously by the use of a single driving means.

What I claim is: v

1. In apparatus for measuring the quantity and rate of flow of a solution through an artificial silk spinning machine having a spinneret and means for forcing a spinning solution therethrough; a shaft, a bracket secured thereto and carrying a plurality of receptacles for receiving solution from said spinneret, and means for intermittently rotating said shaft so as to cause 'the solution to be supplied to said receptacles seriatim comprising a star wheel secured to said shaft, a cam wheel carrying a. pin to engage said star wheel and means for intermittently moving said cam wheel so as to thereby move said pin into operative engagement with said star wheel.

2. In apparatus for measuring the quantity and rate of flow of a solution through an artificial silk spinning machine having a spinning nozzle and means for forcing solution through said nozzle; means for bringing a plurality of receptacles beneath said nozzle into filling position comprising a star wheel, a cam wheel carrying a pin, means-driven by said first mentioned means for rotating said cam wheel, and means to intermittently move said cam wheel so as to thereby move said pin into operative engagement with said star wheel, whereby each receptacle may be moved in sequence into filling position.

3. In apparatus for measuring the quantity and rate of fiow of a solution through an artificial silk spinning machine having a spinning nozzle and means for forcing solution through said nozzle; means removably attached to said machine for supporting a plurality of receptacles so that one is normally beneath said nozzle in filling position, a star wheel associated therewith, a cam wheel carrying a pin, means driven by said first mentioned means for rotating said cam wheel, and means to intermittently move said cam wheel so as to thereby move said pin into operative engagement with said star wheel, whereby each receptacle may be moved in sequence into filling position.

4. In apparatus for measuring the quantity and rate of fiow of a solution through an artificial silk spinning machine having a spinning nozzle and means for forcing solution through said nozzle; means for bringing a plurality of receptacles beneath said nozzle, comprising a shaft and star wheel associated therewith, a cam wheel carrying a pin, means driven by said first mentioned means for rotating said cam wheel, and means to intermittently move said cam wheel so asto thereby move said pin into operative engagement with said star wheel, whereby each receptacle may be moved relativelyinto filling position, and means. associated with said shaft and star wheel to operate similar measuring devices at a plurality of spinning stations.

5. In apparatus for measuring the quantity and rate of fiow of a solution through an artificial silk spinning machine having a spinning nozzle and means for forcing solution through said nozzle; means removably attached to said machine for bringing a plurality of receptacles beneath said nozzle, comprising a shaft and star wheel associated therewith, a cam wheel carrying a pin, means driven by said first mentioned means for rotating said cam wheel, and means to intermittently move said cam wheel so as to thereby move said pin into operative engagement with said star wheel, whereby each receptacle may be moved relatively into filling position, and means associated with said shaft and star wheel to operate similar measuring devices at a plurality of spinning stations.

6. In apparatus for measuring the quantity and rate of fiow of a solution through an artificial silk spinning machine having a spinning nozzle and means for forcing solution through said nozzle; means removably attached to'said machine for bringing a plurality of receptacles beneath said nozzle, comprising a shaft and star wheel associated therewith, a cam wheel carrying a pin, means driven by said first mentioned means for rotating said cam wheel to intermittently move said cam wheel so as to thereby move said pin into operative engagement with said star wheel, whereby each receptacle may be moved relatively into filling position and means associated with said shaft and star wheel to operate similar measuring devices at a plurality of spinning stations.

'7. In apparatus for measuring the quantity and rate of flow of a solution through a spinning machine having a spinneret and means for forcing a spinning solution therethrough; means for bringing .a plurality of receptacles beneath said spinneret into filling position comprising a star wheel, and means driven by said first mentioned means to rotate said star wheel intermittently whereby each receptacle may be successively moved into filling position.

ERNST WACHENDORFF. 

